rom March to Novcmbcr in 1989. a study was made on the reporductive ecology of Ta-dorna ferruginea population The results indicated that Tadorna ferruginea had a specialmating site where its population behaviour could be divided into wooing, small colony andcotipling periods。 The Tadorma ferruginea chooses the nesting place with some regularity,having a nesting area of 0. 24一0. 56hm￣2 The reproduction rate is 4. 25at a hatching rate of94.6%, and a stirvial rate of 90%. At present .shooting is its most ...